Kyushu University Academic Staff Educational and Research Activities Database
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Kyoichi Otsuki Last modified date:2022.04.12

Professor / Forest Environmental Sciences
Department of Agro-environmental Sciences
Faculty of Agriculture

Graduate School
Undergraduate School
Other Organization
Administration Post

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 Reseacher Profiling Tool Kyushu University Pure
HP of Dr.Kyoichi OTSUKI .
Academic Degree
Doctor of Agriculture
Country of degree conferring institution (Overseas)
Field of Specialization
Forest Hydrology
ORCID(Open Researcher and Contributor ID)
Total Priod of education and research career in the foreign country
Research Interests
  • Water, Energy and material cycles of forested watersheds
    keyword : forest, watershed, water cycle, material cycle, energy cycle
    1999.11Water, energy and material cycles in forestted watersheds.
Academic Activities
1. Forest Hydrology -Exploring the Fate of Water in Forest Ecosystem-.
2. Local Meteorology.
1. Jeong Seonhun, Otsuki Kyoichi, Effects of tree mortality on the estimation of stemflow yield in a self-thinning coniferous plantation, Ecohydrology, 10.1002/eco.2327, 14, 7, 2021.10.
2. Jeong Seonghun, Kyoichi Otsuki, Yoshinori Shinohara, Akio Inoue, Ryuji Ichihashi, Stemflow estimation models for Japanese cedar and cypress plantations using common forest inventory data, Agricultural and Forest Meteorology, 10.1016/j.agrformet.2020.107997, 290, 2020.08,  本論文は、森林の樹幹流量は従来過小評価されていたが、過密人工林では樹幹流量は無視できないほど大きいこと、樹幹流量は一般的な林分構造指標である立木密度と胸高直径を変数として推定可能であることを報告した論文である。.
3. Jeong Seonghun, Otsuki Kyoichi, Farahnak Moein, Relationship between stand structures and rainfall partitioning in dense unmanaged Japanese cypress plantations, Journal of Agricultural Meteorology, 10.2480/agrmet.D-18-00030, 75, 2, 92-102, 2019.04.
1. Kyoichi Otsuki, Tamao Kasahara, Yuichi Onda, Development of Innovative Technologies for Enhancing Low Flow Discharge and Reducing Turbid Material from Overcrowded Forest Plantations by Intensive Thinning in Japan, Annual Conference of Korea Water Resources Association, 2012.05.
Membership in Academic Society
  • Japan Society of Erosion Control Engineering
  • The Japanese Forest Society
  • Japan Society of Hydrology and Wtare Resources
  • The Japanese Society of Irrigation, Drainage and Reclamation Engineering
  • The Society of Agricultural Meteorology of Japan
  • "Analysis of return flows in a tank cascade system in Sri Lanka"
    (Matsuno, Y., Tasumi, M., van der Hoek, W., Sakthivadivel, R., Otsuki, K.)
Educational Activities
Undergraduate (All Faculty)
  Introduction to Field Science
  Water, Soil and Plant in Itoshima
  Introduction to Environmental Science

Undergraduate (Faculty of Agriculture)
Ecosystem Science
Outline of Global Forest Science
Intrduction toGlobal Foret Science
Forest Hydrology & Water Resources
Environmental Biophysics
Forest Field Survey II

Graduate School (MasterCourse)

Graduate School (Doctor Course)
 Forest Ecosphere Management
Forest Ecosphere Management
Other Educational Activities
  • 2019.02.
  • 2018.09.
  • 2015.03.